材料科学
X射线光电子能谱
涂层
扫描电子显微镜
模拟体液
腐蚀
化学工程
金红石
微观结构
溅射沉积
钛
冶金
能量色散X射线光谱学
合金
钛合金
生物相容性
核化学
溅射
复合材料
纳米技术
薄膜
化学
工程类
作者
Ruoyun Wang,Xiaojing He,Yuee Gao,Xiangyu Zhang,Xiaohong Yao,Bin Tang
标识
DOI:10.1016/j.msec.2017.02.036
摘要
Zn-doped ZrO2/TiO2 porous coatings (Zn-ZrO2/TiO2) were prepared on the surface of titanium alloy (Ti6Al4V) by a hybrid approach of magnetron sputtering and micro-arc oxidation (MAO). The microstructures, phase constituents and elemental states of the coating were investigated by scanning electron microscope (SEM) equipped with energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The results demonstrate that the Zn-ZrO2/TiO2 coatings are porous and its thickness is approximately 13 μm. The major phases in the oxidation coating are tetragonal ZrO2 (t-ZrO2), cubic ZrO2 (c-ZrO2) and rutile TiO2. XPS result reveals that Zn exists as ZnO in the Zn-ZrO2/TiO2 coatings. The biological experiments indicate that Zn-ZrO2/TiO2 coatings exhibit not only excellent antibacterial property against Gram-positive Staphylococcus aureus (S. aureus), but also favorable cytocompatibility. In addition, the corrosion resistance of the coating is also appreciably improved in the simulated body fluids (SBF), which can ensure better biocompatibility in body fluids.
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